How to use generateReport method of org.testng.Interface IReporter class

Best Testng code snippet using org.testng.Interface IReporter.generateReport

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...15import com.relevantcodes.extentreports.ExtentTest;16import com.relevantcodes.extentreports.LogStatus;17public class ExtentReporterN implements IReporter{18 /​**This interface can be implemented by clients to generate a report. Its method19 * generateReport() will be invoked after all the suite have run and the parameters20 * give all the test results that happened during that run.21 */​22private ExtentReports extent;23 /​**so that the result is private24 *The type ExtentReporterN must implement the inherited abstract method IReporter.generateReport(List<XmlSuite>, List<ISuite>, String)25 * generateReport is a built in method that 26 * creating a method, use List to contain array, create a xml file which will have all the classes,27 * that has methods, testcases, so it will28 * generate a report on those methods, that is passing/​failing/​skipping29 * It needs to be string30 */​31public void generateReport(List<XmlSuite> xmlSuites, List<ISuite>suites, String outPutDirectory){32 33 /​**outPutDirectory will have all the status, pass/​fail/​skip34 * creating an object for extent, creating a virtual obj to save the ouput35 * .separator = Generate a report for the given suites into the specified output directory.36 * it doesn't matter how I received the result,(linux/​xml/​language), the extent report file should be saved under "Extent.html" name, 37 * so it can be opened from anywhere(mobile/​web)38 * true= sometime running the result, if there's no result, don't generate the report, 39 * true makes sure to generate report only when there's a result40 */​41 42extent = new ExtentReports(outPutDirectory + File.separator + "Extent.html", true);43 /​**ISuite contains all classes, it obtain a key value , it can't be duplicated, then it will map it to one44 * location, the location is (in our case) ExtentReort, key value is the status (pass.fail/​skip)that is interface45 * go back to class, print fail to the class, if the method inside the class failed...

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...18 private ExtentReports extent;19 20 21 /​*22 * generateReport - This is abstract method of IReporter interface23 * 24 */​25 26 public void generateReport(List<XmlSuite> xmlSuites, List<ISuite> suites,27 String outputDirectory) {28 extent = new ExtentReports(outputDirectory + File.separator29 + "ExtentReport.html", true);30 for (ISuite suite : suites) {31 Map<String, ISuiteResult> result = suite.getResults();32 for (ISuiteResult r : result.values()) {33 ITestContext context = r.getTestContext();34 buildTestNodes(context.getPassedTests(), LogStatus.PASS);35 buildTestNodes(context.getFailedTests(), LogStatus.FAIL);36 buildTestNodes(context.getSkippedTests(), LogStatus.SKIP);37 }38 }39 extent.flush();40 extent.close();...

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...3import org.testng.reporters.PojoReporterConfig;4import org.testng.xml.XmlSuite;5import java.util.List;6/​**7 * This interface can be implemented by clients to generate a report. Its method generateReport()8 * will be invoked after all the suite have run and the parameters give all the test results that9 * happened during that run.10 */​11public interface IReporter extends ITestNGListener {12 /​**13 * Generate a report for the given suites into the specified output directory.14 *15 * @param xmlSuites The list of <code>XmlSuite</​code>16 * @param suites The list of <code>ISuite</​code>17 * @param outputDirectory The output directory18 */​19 default void generateReport(20 List<XmlSuite> xmlSuites, List<ISuite> suites, String outputDirectory) {21 /​/​ not implemented22 }23 /​**24 * Get the reporter configuration object.25 * <p>26 * <b>NOTE</​b>: Reporter configuration objects must adhere to the JavaBean object conventions,27 * providing getter and setter methods that conform to standard naming rules. This enables28 * {@link org.testng.internal.ReporterConfig} to serialize, deserialize, and instantiate the reporter.29 *30 * @return reporter configuration object31 */​32 default IReporterConfig getConfig() {33 return new PojoReporterConfig(this);...

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...9/​**The IReporter interface in the TestNG Listener provides us with a medium to generate custom reports */​10public class IReporterClass implements IReporter {11 12 13 public void generateReport(List<XmlSuite> xmlSuites, List<ISuite> suites, String outputDirectory) {14 15 for(ISuite suite:suites) {16 String suiteName = suite.getName();17 18 Map<String, ISuiteResult> suiteResults = suite.getResults();19 for (ISuiteResult sr : suiteResults.values()) {20 ITestContext tc = sr.getTestContext();21 System.out.println("Passed tests for suite '" + suiteName +22 "' is:" + tc.getPassedTests().getAllResults().size());23 System.out.println("Failed tests for suite '" + suiteName +24 "' is:" + tc.getFailedTests().getAllResults().size());25 System.out.println("Skipped tests for suite '" + suiteName +26 "' is:" + tc.getSkippedTests().getAllResults().size());27 }...

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generateReport

Using AI Code Generation

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1public class CustomReport implements IReporter {2 private static final String OUTPUT_FOLDER = "test-output/​";3 private static final String FILE_NAME = "CustomReport.html";4 public void generateReport(List<XmlSuite> xmlSuites, List<ISuite> suites, String outputDirectory) {5 List<ISuite> suiteList = suites;6 Map<String, ISuiteResult> suiteResultMap = suiteList.get(0).getResults();7 ISuiteResult suiteResult = suiteResultMap.get("Suite");8 ITestContext testContext = suiteResult.getTestContext();9 IResultMap failedTests = testContext.getFailedTests();10 IResultMap passedTests = testContext.getPassedTests();11 IResultMap skippedTests = testContext.getSkippedTests();12 IResultMap allTests = testContext.getPassedTests();13 allTests.getAllMethods().addAll(failedTests.getAllMethods());14 allTests.getAllMethods().addAll(skippedTests.getAllMethods());15 createCustomReport(failedTests, passedTests, skippedTests, allTests);16 }17 private void createCustomReport(IResultMap failedTests, IResultMap passedTests, IResultMap skippedTests, IResultMap allTests) {18 try {19 File file = new File(OUTPUT_FOLDER + FILE_NAME);20 if (!file.exists()) {21 file.createNewFile();22 }23 FileWriter fw = new FileWriter(file.getAbsoluteFile());24 BufferedWriter bw = new BufferedWriter(fw);25 bw.write("<html>");26 bw.write("<head>");27 bw.write("<style>");28 bw.write("table, th, td {");29 bw.write("border: 1px solid black;");30 bw.write("border-collapse: collapse;");31 bw.write("}");32 bw.write("th, td {");33 bw.write("padding: 5px;");34 bw.write("}");35 bw.write("</​style>");36 bw.write("</​head>");37 bw.write("<body>");38 bw.write("<h1>TestNG Custom Report</​h1>");39 bw.write("<table style=\"width:100%\">");

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generateReport

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1public class TestNGReport implements IReporter {2 private static final Logger LOGGER = LogManager.getLogger(TestNGReport.class);3 private static final String REPORT = "report";4 private static final String REPORT_HTML = "report.html";5 private static final String REPORT_JSON = "report.json";6 public void generateReport(List<XmlSuite> xmlSuites, List<ISuite> suites, String outputDirectory) {7 LOGGER.info("Generating report");8 TestNGReportModel testNGReportModel = new TestNGReportModel();9 for (ISuite suite : suites) {10 for (ISuiteResult suiteResult : suite.getResults().values()) {11 ITestContext testContext = suiteResult.getTestContext();12 testNGReportModel.addTestResults(testContext.getPassedTests().getAllResults(),13 testContext.getFailedTests().getAllResults(),14 testContext.getSkippedTests().getAllResults());15 }16 }17 TestNGReportGenerator testNGReportGenerator = new TestNGReportGenerator();18 testNGReportGenerator.generateReport(testNGReportModel);19 testNGReportGenerator.generateReport(testNGReportModel, outputDirectory + File.separator + REPORT_HTML);20 testNGReportGenerator.generateReport(testNGReportModel, outputDirectory + File.separator + REPORT_JSON);21 LOGGER.info("Report generated");22 }23}

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When you enable parallel then there will be some time between the beforeInvocation and afterInvocation in the logs as you have noticed and that difference in time varies from test to test hence the staggered output.

If what you want is the start and end messages next to each other then you are basically throwing out the time factor and as such can simply add your beforeInvocation message to the afterInvocation method as follows:

public class TestExecutionListener implements IInvokedMethodListener {

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        System.out.println("Testing : " + iInvokedMethod.getTestMethod().getMethodName());
        System.out.println("Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());
    }
}

IMO this is the only way to do it as per your spec. However, if there is other information that must be gathered during the tests then perhaps you could buffer some logs in the TestExecutionListener for example:

public class TestExecutionListener implements IInvokedMethodListener {
    private Map<Integer, Deque<String>> logsMap = new HashMap<Integer, Deque<String>>();

    public void log(IInvokedMethod iInvokedMethod, String log) {
        if(!logsMap.containsKey(iInvokedMethod.getId())) {
            logsMap.put(iInvokedMethod.getId(), new ArrayDeque<String>());
        }

        logsMap.get(iInvokedMethod.getId()).add(log);
    }

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Testing : " + iInvokedMethod.getTestMethod().getMethodName());
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());

        Deque<String> logs = logsMap.get(iInvokedMethod.getId());
        while(!logs.isEmpty()) {
            System.out.println(logs.poll());
        }
    }
}
https://stackoverflow.com/questions/38987504/getting-sequential-logs-while-executing-tests-in-parallel

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